1. Optimising~soil cultivation and seedbed preparation parameters referring to soil conditions / O.S. Marchenko 2. The working performance of animal-drawn implements for soil tillage in Western Africa / J. Betker and H.D. Kutzbach 3. La date du travail primaire du sol en agriculture pluviale au Maroc / E.H. Bourarach and H. Eichhorn 4. The influence of chisel plough share wing geometry on tillage forces / J.M. Fielke 5. Measurement and prediction of forces on plough bodies -1. Measurement of forces and soil dynamic parameters / G. Girma 6. Disk trajectory simulation of a powered disk tiller / H. Guo, T.R. Burkhardt, R.H. Wilkinson, M. Hoki and T. Tanoue 7. Disc configuration and performance / M.J. Hann, R.J. Godwin, T.A. Green and A.Al-Ghazal 8. Perfomance characteristics of the PTO powered disk tiller / M. Hoki; T.H. Burkhardt and T.Tanoue 9. Effects of different harrows on seedbed quality and crop yield / L. Henriksson 10. Low input ridge tillage systems / R. Reeder 11. Energy-saving ploughing with variable width ploughs / J.I. Jori and S. Soos 12. Selection of work parameters of a tractor-plough combination at reduced tractor engine speed / J. Kuczewski and Z.Majewski 13. Deep Soil loosening effects on sugar beet performance / F.J. Larney and R.A. Fortune 14. Economic and technical appraisal of trial results of some innovatory land tilling methods / V. Panaro and G. Patruno 15. Mounted and drawn vibratillers and proposal for a program for tillage data processing / A. Peruzzi, S.B. Consorti and S.Di Ciolo 16. Studies on engineering design theories of hand-tractor ploughs / S. Phongsupasamit and J. Sakai 17. An experimental investigation of the effects of ribbed shanks on the soil displacements induced by a mole plough / M. Rodgers, J. Mulqueen and M. Kyne 18. Performance evaluation of an enamel coated mouldboard plough / V.M. Salokhe, D. Gee-Clough and A.I. Mufti 19. Influence of mole plough leg and expander geometry on soil disturbance / G. Spoor, M.J. Hann and A.S. Centeno 20. Wechselwirkungen von Bodenbearbeitungssystemen im l0-jahrigen Versuch auf technische Leistungsparameter, Bodenstruktur; biologische Aktivitat, Pflanzenknkheiten und Ertrag F. Tebrugge 21. Soil pressure distribution on rigid tines / G. Tine 22. Influence of preliminary soil cultural practices in horticultural crops in Valencia / A. Torregrosa Mira and C. Gracia Lopez 23. Application of a vibratory tillage tool for the reclamation of aging citrus orchards / G. Venter 24. First test results of rice sowing on dry soil by pneumatic fertilizer spreader / P. Balsari, S. Bocchi and F. Tano 25. Seed encapsulation system / R.E. Garrett, J.J. Mehlschau and N.E. Smith 26. Techniques for the evaluation of precision planters / A.J. Heyns 27. An application of solid state cameras to testing the uniformity of seed feeding / Ji Chungian and Yu Feng 28. A two-row automatic seed yam planter prototype / E.U. Odigboh and C.O. Akubuo 29. A punch planter for vegetables on plastic mulch covered beds / L.N. Shaw and K.H. Kromer 30. Self feeding transplanters / GwSuggs, H~Peel and T~Seaboch and D.LEddington 31. Untersuchungen an Reifen zum boden - und pflanzenschonenden Befahren von Grunland K. Armbruster 32. Penetrometrie, choix des outils et dates de travail du sol / J.F. Billot 33. Field capacitive performance of track type tractors in plough operations under tropical conditions / F.G. Braide 34. The economics of zero traffic systems for winter barley in Scotland / D.J. Campbell and M.J. McGregor 35. Qualitative evaluation of a combined implement for minimum tillage / R. Cavalli and L. Sartori 36. The combined lateral and longitudinal forces on a 18.4-35/15-35 tractor tyre / H.LM. du Plessis 37. Influence of trampling on some physical and hydrophysiological characteristics of woodland soil / A. Ferrero 38. Soil compaction in the tropics and some means of alleviating it / B. Kayombo 39. Horizontal penetrometer for trench walls / G. Manor, R.L. Clark and D.E. Radcliffe 40. Controlled traffic research: An international report / J.H. Taylor 41. An agricultural engineering approach to investigate crop responses to soil loading treatment / G.D. Vermeulen, F.R. Boone, W.B.M. Arts and F.G.J. Tijink 42. Open-field crop experiments on soils heated with power station cooling water / L. Balemans, W. Van Der Biest, M. Devrome and A. De Groote 43. GypsurMime slotting technique and machinery for ameliorating acid and sodic sub-soils / J. Blackwell, N.S. Jayawardane, R.Butler J.C. Casegrain and R.E. Smart 44. Experiments on the use of a hydrocarbon based soil conditioner / K/ Bahadyr 45. Chaulage et modifications de la fertilite physique en sols limoneux hydromorphes / F. Kockmann and B. Fabre 46. Separation, sorting and grading during harvesting and handling of agricultural products at farm level / E. Manfredi 47. Harvesting and cleaning machine for olives dropped on the ground / A.Arrivo and F. Bellomo 48. Citrus automatic grading device / F. Barresi and G.Blandini 49. Performance evaluation of stationary threshers / L.L. Bashford, O. El Gharras, K. Von.Bargen and D.V. Byerly 50. Performance changes of the cleaning unit of a combine harvester during field tests / T. Beck 51. Durchsatzhestimmung fur eine Regelung der Mahdrescher-Reinigungsanlage / S. ~Bottinger 52. Arbeitsqualitat von Axial - und Tangentialdreschwerken / P. Wacker 53. Development of power and pedal operated peanut shellers / K. Gore, C.P. Gupta and G. Singh 54. Structural and operating features of devices for mechanical almond shelling / P. Guarella and A. Pellerano 55. Machine vision grading of tree seedlings / G.A. Kranzler and M.P. Rigney 56. Grain cleaning and grading / J.J. Lenehan 57. Mise au point d'un decortiqueur a mil-mais-sorgho au Senegal / H.M. Mbengue 58. First approaches to robot utilisation for automatic citrus harvesting / G. Blandini and P. Levi 59. The impact of transportation on forage harvesting and processing procedures / H.D. Bruhn and R.J. Straub, R.G. Koegel and K.J. Shinners 60. KSU date palm service machine / S.A. Al-Suhaibani, A.S. Babeir and J. Kilgour 61. Fully mechanized winter pruning of grapevines / E. Cini, A. Cioni, D. Vannucci and M. Vieri 62. Research on edge-curve angles of rotary blades / Ding Weimin and Peng Songzhi 63. High speed movie observation of an axial flow combine harvester cylinder / E. Gasparetto, P. Febo, D. Pessina and E. Rizzato 64. Electronic sorting on industrial tomato harvester / G.Giametta 65. The theory of free cutting and rotary cutters / E.Guzel and Y. Zeren 66. Modified environment windrow harvesting of rice / B.M. Jenkins 67. Development of new equipment for coffee harvesting / D.A. Ometto 68. EinfluB der Stoffeigenschaften auf die leistungsfahigkeit landwirtschalflicher Maschinen / H.D. Kutzbach 69. Maize straw chopping with cylinder-type cutting head / M.L. Martinov and M.L. Tesic 70. Harvesting potatoes - Harvesting damages and labour utilization on farms / P.Mattila 71. Proposal for a model to assist in the choice of forage harvesting and conservation techniques: Methodological and applicative aspects / F. Mazzetto 72. A novel grain crops harvester for Bangladesh / M.M.R. Mollah and C.D. Watt 73. Performance evaluation of a single-axle tractor powered cow-pea harvester / K.C. Oni 74. Future developments in stripper harvesting / J.S. Price 75. Usefulness of different representations of the material in the pressing chamber of a baler to dynamic analysis of a pressing system / J. Uziak 76. Apple firmness and sensory quality using contact acoustic transmission / H.A. Affeldt, Jr. and J.A. Abbott 77. Handled apples as calibrated sensors of apple handling gentleness / O.J. Berentsen 78. Halmfutter-Mhhaufbereitung mit IntensivaufschluB und Mattenformung / Th. Bischoff, H. Wandel, S. Oztekin and K. Walther 79. Ensilability of mat-processed alfalfa /R.E. Muck, R.G. Koegel, K.J. Shinners, and R.J. Straub 80. Rapid field drying of forages utilizing shredded mat technology / K.J. Shinners, R.G. Koegel and R.J. Straub 81. Application and control of the distribution of plant nutrients and pesticides / A. Nordby 82. Pesticide deposit and activity as a function of spray atomizers and liquid formulation / N.B. Akesson and W.E. Yates 83. Testing of herbicide application equipment in the vineyard / E. Cini, D. Vannucci and M. Vieri 84. Etude des possibilites d'amelioration du pulverisateur a dos pour le traitement des mauvaises herbes dans la culture des cereales / K. Houmy and M. Bouhache 85. Closed system sprayers - The design and development of the DOSE 2OOO / A.J. Landers 86. Modilisation de la repartition transversale du volume disperse par une rampe de pulverisateur / P. Leunda, C. Debouche and R. Caussin 87. A method for determination of theoretical characteristics of centrifugal pumps for field sprayers / M. Miszczak 88. Plant protection equipment - Use and misuse / A. Nordby 89. Recent developments in the use of aircraft in the control of locust plagues in sub-Saharan Africa / J.D. Parker 90 Manual and automatic systems of controlling the application rate of tractor-mounted ground-crop sprayers / B. Rice, J. Croke and B. McKenna 91. Gewichtsermittlung und Wegmessung am Traktor fur eine verbesserte Applikationstechnik bei Dunger und Pflanzenschutz / H. Auernhammer, M. Demmel and J. Rottmeier 92Investigations into thermal techniques for weed control / S. Parish 93. Fertilizer application for small farmers in the Mexican humid tropics / B.G, Sims, R.Jimenez, R. and A. Aragon R. 94. NPK content of cotton plants as a diagnostic means for fertilization practice / I. Levin and M. Meron 95. Evolution de la teneur des feuilles de ble dur en azote, phosphate et potassium au cours de la croissance sous conditions naturelles et en plein champ: Temps d'echantillonnage / M. Mechergui and S. Lazaar 96. Testing of spreaders for granular fertilizer / P. Spugnoli, M. Vieri and M. Zoli